Gearing



June 29 1926. 1,590,536

1'. H. MARS GEARING' Filed June 25. 1924 2 Sheets-Sheet 1 J2 016/2751flak/251212776025 Patented June 29, 1926.

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GEARING.

Application filed 311116 25,

' This invention relates. to improvements in; gearing for washing,machines and the like, and consists of the matters hereinafter (1 6.1scribediandLmore particularly pointed onti ln 5 the. appended. claims.

The object of the inventionis vto produce asiniple and efficientgearing, and one comprising few parts, all capable of. be ng enclosed inan oil bath, for: operatingthe a l 10. ternating. rotary member of awashing H13", chine and the wringer mechanism usually carried by such awashingrnac-hine- This, and several other objects and'xade vantages ofthe invention, will appear more fully as I proceed with myspecification.

In the drawings Fig. 1 is a front view ofa washingiinachine of familirtype, provided with the usual water containing tub with an oscil latingrotary clothes container therein, said washing machine being driven bythe iinproved gearing which is shown partly. in front elevation andpartly in section.

Fig. 2 is a view representingahorizontal section through Fig. 1 'inaplanefindicatedby line 2-2 in Fig-'1. V

Fig. 3' is a view showing part of the mechanism in a differentpositionthan that shown in l iga2 aswill'be more particularly pointedout later;

Fig. a is a detailed perspective viewof anactuating cam comprising one'ofthe' elements of the improved-gearing;

llig- 5'is a detailed sectional view of a part of the gearing; theplane-of the'section beingind-ieated by the line 5'5 of-Fig. 2.

Fig. 6 is a -tran'sv'ersesectionof the-pafls shown in Fig; 5,' the planeof which' is indicated by the line 6 6 ,in Figz 5.

' Referring now in detail to that en-ibod-i} ment of the inventionillustrated in the drawings:l indicates the main support for thegearing,-which as illustrated herein,

v is the frame of: a washing} machine-of the cylinder type. V Theframe-includes a; rectangular-tub 11, which is-niounted'at its cor:

ners upon front and rear pairs of upright legs, only the legs 12 ofthe-front pair being showninthis instance. Said 'frontpair-of legs areconnected att-h'eir top and 'bott'oml so as to brace theframeas awhole.The tub 11 has a rounded bottom wall which me'rges into the upright sidewalls and includesup M right front and rear-end walls." The front endwall 13 is spaced inwardly from the 192 Serial No 722,198.

plane of; the front legs 12 to provide acOnl-f part nent orjspa'cebetween said front Walls, and; legs, in which the improved gearing islocated;

1% indicates; the oloth-esireceiving cylinder which is; mounted in theend walls of-the. tub in any convenient manner so as tobe; capable of anoscillatory, movement. of the required; amplitude. Said cylinderis.detachably. connected to. a horizontally; dis.-

posed, longitudinally extending operating.

shaft 15.

1 6 infdicates a gear. case or box: which is mounted inthe compartment;or space. pro-L vidediin fronteof the walltli'land issupport, 6.Cl;011.abar or platform 17, whichextends transversely across said. space andissuitably attached at: itsv ends .to the legs, 1212 of; the-frame. Saidgear case hasan uprightzrearwall 18on=the rear faceof which is provideda bearing sleeve. 19. through which.v the shaft l5.ex tends 'At theforwardend of' saidshaft and within the box 16, the shaft has fixed toit preferably as an integral part of its construction, a

sine-W124. By means ofthis clutch 26-, the sleeve 2-imay be fixedlyconnected with the shaft=21, so as to rotate therewith.

27 indicates a cam whichis in the form of a flats-pool with arectangular groove 28- in its periphery. Said camis hired on the sleeve2-1 in plane eXten-dingat an angle to-the central axis of' the sleeve-2The fork arms -embrace-the can} spoolf27 and are provided at thei-rendswith rota-tive pins 29 having-sh'oesGO which engage in the rectangular'groove 2-8 of the cam. Said shoes being preferably providedat theirsides with spacedf anti-ffict-iOrrrollers 31 for engage mentwithtliesides-28 of the cam groove,

said anti-friction rollers being held in place by retainer plates 3232on opposite sides of each shoe 30.

The construction is such that when the shaft 21 is rotated and thesleeve 24 is connected thereto by the clutch collar 26, said sleeve andits cam 27 will likewise be rotated and cause the fork to impart anoscillatory rotary movement to the shaft 15.

Secured to the shaft 21 adjacent to the bearing 23 is a worm gear 33.Said gear meshes with a worm 34 on a horizontal shaft 35 which isarranged in a plane below and extends at a. right angle to the shaft 21.The shaft 35 is journalled in suitable hearing sleeves on the front andrear walls of the gear case 16 and said shaft projects through astuffing box 36 on said front wall and has fixed to it a pulley 37. Saidpulley is driven by a belt 38 from an electric motor 39'which is mountedon that end of the platform 17 near the right-hand leg 12.

40 indicates an upright shaft which is j ournalled at its bottom end insuitable bearing sleeves formed on the casing 16 and its cover plate 16respectively. Fixed to said upright shaft 40, within the casing 16 is aworm gear 41 which meshes with the worm 34 before mentioned. The top endof said shaft pr jects above the top of the washing machine frame and isjournalled in a gear box 1-2. Said gear box which is capable of swingingmovement about a hollow standard 43, through which the shaft 40 extends,contains the reverse gearing for the rolls of aclothes wringer 44 whichis rigidly secured to one side of the gear box 42. A lever 45 isprovided at the top of the gear box for actuating the reverse gearswithin said box while a second lever 46 is so connected to the bottomend of the gear box as to lock the wringer to the standard 43 in any oneof the desired angular positions into which it may be swun The clutchmember 26 on the shaft 21, is actuated by a lever 47 which is pivotedbetween its ends on a cross pin 48 carried by the cover 16 of the casing16. The bottom end of said lever is forked as at 49 to straddle andengage the peripherally grooved end of said clutch member, while the topend 50 of said lever extends up through a suitable slot in the cover 16.To said top end of the lever is connected a horizontal rod 51 and saidrod carries a knob at that end which projects beyond the left-hand sideof the machine frame as shown in Fig. 1.

Assume that the motor 39 is running and is driving the shaft 35 throughthe belt38 and pulley 37. The shafts 21 and 40, being connected by theworm gears 33 and 41 respectively to the worm 34 on the shaft 35, willalso be continuously driven in one direction. When the clutch 26 isengaged with the sleeve 24, said sleeve is locked to the shaft 21 andwill rotate therewith. In the rotation of the sleeve 24 and cam 27thereon, the fork 20 and the operating shaft 15 to which it is fixed, iscaused to oscillate through a predetermined amplitude which as shownherein is 90,that is 45 on one side of center and 45 on the other sideof center. By reason of the construction just mentioned, the oscillationof the clothes cylinder or container slows down towards the ends of theoscillations and is hastened or is faster at the point midway betweensaid ends so that no undue shock or jar is imparted to the rest of theassociated gearing and the torque on the driving motor is thereforegreatly reduced.

As before stated the upright shaft 40 is driven continuously in onedirection when the motor 39 is running. Thus through the movement of thelever 45, the action of the wringer rolls is readily controlled and saidrolls may be driven in either direction, when the clothes cylinder isoscillating or is idle as when the clutch 26 has been shifted out ofengagement with the cam sleeve 24.

By enclosing the clutch member in the casing 16, which contains alubricant, it cannot become rusty, due to splashing water and thereforeit will not stick and bind as heretofore. The entire gearing includingthe cam and fork on the operatingrshaft is enclosed in the casing 16 sothat it is impossible for the clothing of the operator to become caughttherein. Furthermore the noise of operation is materially reduced.

\Vhile in describing my invention, I have referred to certain details ofmechanical construction and arrangement of parts thereof, 1 do not wishto be limited thereto except as may be pointed out in the appendedclaims.

I claim as my invention 1. In combination, a gear box having uprightfront, rear and end walls, a rotary, oscillatory driven shaft bearing inand extending beyond said rear wall, a driving shaft within said gearbox with its axis of rotation extending at right angles to andintersecting the axis of rotation of said driven shaft, a sleeve looselymounted on said driving shaft in the neighborhood of said driven shaft,a cam fixed to said sleeve and having a cam groove in a plane located inthe angle between the axes of rotation of said two shafts and containingthe point of intersection thereof, a fork fixed to the inner end of saiddriven member within said gear box and having arms operatively engagedwith said cam groove at diametrically opposite points, an operatingshaft bearing in the front and rear walls of said gear box, a worm andgear connection between said operating shaft and said driving shaft, aclutch member on said driving shaft adapted to connect said sleeve tosaid driving shaft, and an arm extending out of said gear box foroperating said clutch member.

2. In combination, a gear box having upright front, rear and end walls,a rotary oscillatory driven shaft bearing in and extending beyond saidrear wall, a driving shaft within said gear box with its axis ofrotation extending at right angles to and intersecting the axis ofrotation of said driven shaft, a sleeve loosely mounted on said drivingshaft in the neighborhood of said driven shaft, a cam fixed to saidsleeve and having a cam groove in a plane located in the angle betweenthe axes of rotation of said shafts and containing the point ofintersection thereof, and a fork fixed to the inner end of said drivenmember within said gear box and having arms operatively engaged withsaid cam groove at diametrically opposite points.

3. In combination, a gear box having upright front, rear and end walls,a rotary, oscillatory driven shaft bearing in and extending beyond saidrear wall, a driving shaft within said gear box with its axis ofrotation extending at right angles to and intersecting the axis ofrotation of said driven shaft, a sleeve loosely mounted on said drivingshaft in the neighborhood of said driven shaft, a cam fixed to saidsleeve and having a cam groove in a plane located in the angle betweenthe axes of rotation of said shafts and containing the point ofintersection thereof, a fork fixed to the inner in the front and rearwalls of the gear box, and a worm and gear connection be tween saidoperating shaft and said driving shaft.

4. In combination, a gear box having up right front, rear and end walls,rotar os- 'cillatory driven shaft bearing in an ex tending beyond saidrear wall, a driving shaft within said gear box with its axis ofrotation extending at right angles toand intersecting the axis ofrotation of said driven shaft, a sleeve loosely mounted on said drivingshaft in the neighborhood of said driven shaft, a cam fixed to saidsleeve and having a cam groove in a plane located in the angle betweenthe axes of'rotation of said shafts and containing the point ofintersection thereof, a fork fixed ,to the inner end of said drivenmember Within said gear box and having arms operatively engaged with thecam groove at diametrically opposite point-s, an operating shaft bearingin the front and rear walls of the gear box, a continuously rotatingupright driven shaft journalled in said gear box, and.

worm and worm gear connection between said continuously rotating drivenshaft and said driving and operating shafts.

In testimony that I claim the foregoing as my invention, I affix mysignature this 16 day of June, A. D. 1924.

THOMAS H. MARS.

